Blood type exists as four possible phenotypes: A, B, AB, & O. Examples of Multiple Alleles a) Blood group (ABO) in human. c) Coat color in rabbit. Define 'Multiple Allele Inheritance'. ... For example, a person cannot have ABo blood as it has more than two alleles. Compare and contrast pleiotropy and epistasis. Multiple Alleles. In this case, there are three alleles circulating in the population. The RR individuals have round peas, and the rr (homozygous) individuals have wrinkled peas. In this case, there are three alleles circulating in the population. One is a dominant allele while the other is a recessive allele. A classic example of dominance is the inheritance of seed shape in peas. b) Coat color in mice. Anti A and Anti B. The I A allele codes for A molecules on the red blood cells, the I B allele codes for B molecules on the surface of red blood cells, and the i allele codes for no molecules on the red blood cells. The key difference between codominance and multiple alleles is that codominance is expressing the effects of both alleles independently, without blending in the heterozygous state, while multiple alleles refer to the state of a trait that has more than two different alleles.. Generally, each gene comes with two different alleles. What is the name of the type of inheritance in which rabbits of two completely different phenotypes cross? The human ABO blood groups are an example of multiple alleles, and the relationship between phenotype and genotype is depicted in the figure above.There are four possible phenotypic blood types for this particular gene: A, B, AB, and O. The letters refer to two specific carbohydrate molecules on the surface of red blood cells. Give examples of each. Many genes have multiple phenotypic effects, a property called pleiotropy. Epistasis is when a gene at one location (locus) alters the phenotypic expression of a gene at another locus. The I A allele codes for A molecules on the red blood cells, the I B allele codes for B molecules on the surface of red blood cells, and the i allele codes for no molecules on the red blood cells. When more than two alleles exist in a population for a single trait. There are 3 alleles for the gene that determines blood type. Polygenic inheritance should not be confused with the effects caused by multiple alleles. The term "multiple alleles" is used to describe when a trait is controlled by more than two alleles. Blood group (ABO) in human • Classical and most common example of multiple allele is ABO blood group of human being • Gene coding blood group has three alleles rather than two. Define multiple allele traits. However, there are other special cases whereby a gene can have multiple alleles. d) Eye color in Drosophila. Multiple Alleles, Epistasis, Pleiotropy and Polygenetic Inheritance. Multiple Allele Inheritance. An excellent example of multiple allele inheritance is human blood type. (Remember: You have just 2 of the 3 in your genotype --- 1 from mom & … 3. 6. An example of multiple alleles is the ABO blood-type system in humans. Review 1. 2. For example, humans in a … An example of multiple alleles is the ABO blood-type system in humans. Peas may be round, associated with allele R, or wrinkled, associated with allele r. In this case, three combinations of alleles (genotypes) are possible: RR, Rr, and rr. In the case of multiple alleles, a gene contains several different allele variants on the same locus of each chromosome, for example the three different alleles which control for blood type – A, B & O. Multiple Allele Inheritance Student's Name Institution Affiliation Multiple Alleles According to Mendel's model, each gene consisted of only a pair of two alleles. How are collagen genes an exmaple of pleiotropy? 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